CN109632630A - The test method and test equipment of battery pole piece adhesive force - Google Patents
The test method and test equipment of battery pole piece adhesive force Download PDFInfo
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- CN109632630A CN109632630A CN201710933051.3A CN201710933051A CN109632630A CN 109632630 A CN109632630 A CN 109632630A CN 201710933051 A CN201710933051 A CN 201710933051A CN 109632630 A CN109632630 A CN 109632630A
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- Prior art keywords
- pole piece
- battery pole
- test
- pressing means
- adhesive force
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
Abstract
The present invention provides the test methods and test equipment of a kind of battery pole piece adhesive force, it is related to the testing field of battery pole piece, the test method of the battery pole piece adhesive force, includes the steps that making battery pole piece that deformation occurs and tests the deflection and unit for electrical property parameters of battery pole piece；The test equipment includes pressurizing device and measuring device.It not can be carried out quantitative analysis using the test method that the test method and test equipment alleviate existing battery pole piece adhesive force and test result there is technical issues that, achieved the effect that quantitative analysis can be done to the adhesive force of battery pole piece.
Description
Technical field
The present invention relates to the testing field of battery pole piece, more particularly, to a kind of battery pole piece adhesive force test method with
Test equipment.
Background technique
New energy materials are the function for referring to support and promoting new energy development, possess energy storage Yu energy conversion function
The material of energy material or structure and function integration.New energy materials play important work to the development prospect of new energy
With the appearance of certain new energy materials promotes the birth of new energy resources system, and the application of certain new energy materials greatlys improve
The efficiency of new energy resources system, the utilization of new energy materials can directly affect the investment and operation cost of new energy resources system.With
The birth of new energy materials, current lithium ion battery critical material possess highly important effect in new energy materials.
It theoretically not only needs research staff to continually develop, but also also extremely stringent to the production requirement of battery critical material, only
Have by excellent equipment and workshop working condition, in conjunction with high-quality technician, finally can just produce qualified lithium from
Sub- battery.Based on above-mentioned condition, wherein the superiority and inferiority degree of battery pole piece state determines the quality of battery performance.
The battery pole piece of lithium ion battery includes collector and coated on the electrode active material on collector.At present to electricity
The study on the modification of pond pole piece is concentrated mainly on following three aspects: mixing, coating and roll-in, and the quality of this three's technique is directly
Determine the superiority and inferiority degree for the performance that battery pole piece applies in battery.Wherein the active material layer of battery pole piece and collector are viscous
The superiority and inferiority degree of knot also directly affects the high rate performance and stable circulation performance of battery system, and then determines the use of battery
Service life.
Currently, in order to preferably characterize battery pole piece resistance to bond problem, to optimize the mixing of battery pole piece, coating
And rolling process, it is using the adhesive tape with caking property, directly to the active material being coated on battery pole piece in the conventional mode
Material is bonded, and determines that collector and electrode active material are bonded by the size of comparison adhesive tape and collector cementation power
Quality.This method needs technical staff by technical experience abundant to judge caking property quality, and then optimizes technique early period, system
For battery pole piece excellent out.Although this test mode is convenient and efficient, this method not can be carried out quantitative analysis, and adhesive tape
The difference of caking property and the difference of tester's experience can cause error to test result, to influence the progress of production, reduce
Production efficiency, can more seriously generate a large amount of substandard products, affect the benefit of enterprise.
In view of this, the present invention is specifically proposed.
Summary of the invention
The first object of the present invention is to provide a kind of test method of battery pole piece adhesive force, to alleviate existing battery
The test method of pole piece adhesive force not can be carried out quantitative analysis and test result there is technical issues that.
The second object of the present invention is to provide a kind of test equipment of battery pole piece adhesive force, utilizes the test equipment energy
It is enough that quantitative analysis is done to the adhesive force of battery pole piece.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
A kind of test method of battery pole piece adhesive force, deformation occurs including making battery pole piece and tests the change of battery pole piece
The step of shape amount and unit for electrical property parameters.
Further, the straight line compressed dimension characterization of the deflection battery pole piece of the battery pole piece.
Further, the unit for electrical property parameters includes voltage, electric current or resistance.
A kind of test equipment for realizing above-mentioned test method, including filled for applying stressed pressurization to the battery pole piece
It sets and the measuring device of the deflection for measuring the battery pole piece and unit for electrical property parameters.
Further, the pressurizing device include pressing means and for drive the pressing means along compression aspect move back and forth
Drive system.
Further, the pressurizing device further includes the pedestal being oppositely arranged up and down with the pressing means, the pressing means
It can be moved back and forth in above-below direction relative to the pedestal.
Further, the surface of the pedestal is equipped with the first groove for limiting battery pole piece position.
Further, the two sides of first groove are equipped with the first limited block.
Further, the surface of the pressing means is equipped with the second groove for limiting battery pole piece position.
Further, the two sides of second groove are equipped with the second limited block.
Further, the pressurizing device further includes the carrying cylinder for placing battery pole piece, the carrying cylinder
Axial vertical with compression aspect, the carrying cylinder is the carrying cylinder of elastic material.
Further, the measuring device includes measurement monitoring system, and the measurement monitoring system includes for measuring electricity
Pressure, the first signal acquisition process module of electric current or resistance.
Further, the measurement monitoring system further includes for measuring at the second signal acquisition of pressing means moving distance
Manage module.
Further, the measurement monitoring system is electrically connected with drive system.
Further, the measuring device further includes signal output system, and the signal output system and the measurement are supervised
The connection of control system.
Further, the drive system includes in hydraulic gear, pneumatic actuator or electric transmissio mechanism
It is any or at least two combination.
Compared with the prior art, the invention has the following beneficial effects:
Deformation occurs by making battery pole piece for the test method of battery pole piece adhesive force provided in the present invention, and passes through survey
Deflection and the unit for electrical property parameters of battery pole piece are measured to judge caking property between the collector of battery pole piece and electrode active material
Quality.For example, battery pole piece is first cut into required shape, and electricity consumption performance parameter testing device is connected to electricity when test
A, B two o'clock on the pole piece of pond carries out pressurization to battery pole piece at this time and brings it about deformation.It is that battery pole piece is instigated to be sent out that deformation occurs
It is raw to be bent and gradually increase bending amplitude by pressurization, the electrode activity when bending amplitude reaches certain value on battery pole piece
Material layer is cracked, and the unit for electrical property parameters tested at this time can generate large change, records the change of battery pole piece at this time
Shape amount can compare the size of adhesive force between different battery pole pieces.
Test equipment provided by the invention, including pressurizing device and measuring device, wherein pressurizing device can make battery pole piece
It occurs bending and deformation, and measuring device can test the unit for electrical property parameters and deflection of battery pole piece.In use, using pressurizing device
Carrying out pressurized operation to battery pole piece can be incrementally increased with the bending amplitude of battery pole piece, when the electrode activity material on battery pole piece
When the bed of material is broken, the unit for electrical property parameters that measuring device is shown at this time will have greatly changed, so as to by pair
The deflection of battery pole piece haggles over the size of the adhesive force of different battery pole pieces when than fracture.
Quantitative analysis can be carried out to battery pole piece adhesive force by above-mentioned test method and test equipment, improve test
Accuracy and testing efficiency, while production efficiency is improved, good reference is provided to optimize the production technology of battery pole piece
Data, and manpower and production cost is greatly saved, and then increase the overall efficiency of enterprise.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the pressurizing device in the test equipment that the embodiment of the present invention one provides；
Fig. 2 is the vertical view figure structure schematic representation of the pedestal in structure shown in Fig. 1 of the present invention；
Fig. 3 is the system attachment structure schematic diagram for the test equipment that the embodiment of the present invention one provides；
Fig. 4 is the structural schematic diagram of the carrying cylinder in test equipment provided by Embodiment 2 of the present invention.
Icon: 10- pressurizing device；11- pedestal；The first groove of 111-；The first limited block of 112-；12- carries cylinder；13-
Pressing means；The second limited block of 131-；14- upper pedestal；15- guide post；16- pilot sleeve；17- gasket；20- measuring device；21-
Measure monitoring system；22- signal output system.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
One aspect of the present invention provides a kind of test method of battery pole piece adhesive force, including makes battery pole piece
Deformation and the step of test the deflection and unit for electrical property parameters of battery pole piece.
Deformation occurs by making battery pole piece for the test method of battery pole piece adhesive force provided in the present invention, and passes through survey
Deflection and the unit for electrical property parameters of battery pole piece are measured to judge caking property between the collector of battery pole piece and electrode active material
Quality.For example, battery pole piece is first cut into required shape, and electricity consumption performance parameter testing device is connected to electricity when test
A, B two o'clock on the pole piece of pond carries out pressurization to battery pole piece at this time and brings it about deformation.It is that battery pole piece is instigated to be sent out that deformation occurs
It is raw to be bent and gradually increase bending amplitude by pressurization, the electrode activity when bending amplitude reaches certain value on battery pole piece
Material layer is cracked, and the unit for electrical property parameters tested at this time can generate large change, records the change of battery pole piece at this time
Shape amount can compare the size of adhesive force between different battery pole pieces.
In the present invention, the adhesive force of battery pole piece refers to the bonding in battery pole piece between collector and electrode active material
Power.Make battery pole piece in test deformation occurs to be that battery pole piece is instigated to occur bending and deformation, when battery pole piece occurs bending and deformation
When, collector can be tended to separate out with electrode active material.With A point and B on measuring device (such as multimeter) measurement battery pole piece
Unit for electrical property parameters between point, point when the bending amplitude of battery pole piece is increasing, between collector and electrode active material
It is also bigger from power, when electrode active material is broken, at this point, great-jump-forward will occur for the unit for electrical property parameters that measurement obtains
Variation, the deflection for recording battery pole piece at this time can characterize the adhesive force of the battery electrode indirectly.With identical test
Method tests the adhesive force of different battery pole pieces so as to realize the quantitative comparison of adhesive force, solves and utilizes traditional test
Method relies on the shortcomings that tester's working experience.
As a preferred embodiment of the present invention, the straight line compressed dimension of the deflection battery pole piece of the battery pole piece
Characterization.Characterization is carried out with more operability, at this time, it is only necessary to which battery pole piece is cut into specific ruler with straight line compressed dimension
It is very little, it then pressurizes to it, battery pole piece is extruded when electrode active material is broken from reset condition after deformation occurs
The straight-line dimension of compression is the deflection of battery pole piece.At this point, squeeze when to guarantee battery pole piece will not sideslip, avoid shadow
Ring measurement result.
As a preferred embodiment of the present invention, the unit for electrical property parameters includes voltage, electric current or resistance.With voltage, electricity
Stream or resistance are characterized, and measurement process and test equipment are more simple, and operability is stronger.
Another aspect of the present invention provides a kind of test equipment of above-mentioned test method, including for the battery
Pole piece applies the measuring device of stressed pressurizing device and deflection and unit for electrical property parameters for measuring the battery pole piece.
Test equipment provided by the invention, including pressurizing device and measuring device, wherein pressurizing device can make battery pole piece
It occurs bending and deformation, and measuring device can test the unit for electrical property parameters and deflection of battery pole piece.In use, using pressurizing device
Carrying out pressurized operation to battery pole piece can be incrementally increased with the bending amplitude of battery pole piece, when the electrode activity material on battery pole piece
When the bed of material is broken, the unit for electrical property parameters that measuring device is shown at this time will have greatly changed, so as to by pair
The deflection of battery pole piece haggles over the size of the adhesive force of different battery pole pieces when than fracture.
Pressurizing device in the present invention can be also possible to automatic pressurizing device for manual pressure device.When for manual pressure
When device, the pressurization moving distance of pressurizing device can use individual measuring tool (such as graduated scale) and measure；When with
Automatic pressurizing device under pressure, automatic pressurizing device and measuring device can be electrically connected, and may be implemented to control automatically
Function processed, and measured by measuring device and exported with signal.
As a preferred embodiment of the present invention, the pressurizing device includes pressing means and for driving the pressing means edge
The drive system that compression aspect moves back and forth.
Pressing means are contacted with battery pole piece when pressurization, and drive system drives pressing means to move back and forth along compression aspect,
To realize pressurization and return.Drive system can be manual driving system, or automotive drive system.When drive system is adopted
Under pressure with manual driving system (such as hand power screw transmission mechanism), measuring device and battery pole piece are carried out before pressurization
Electrical connection, at this time shake screw drives mechanism so that pressing means is gradually squeezed battery pole piece deformation occurs, when unit for electrical property parameters (as electricity
Pressure, electric current and resistance) the mobile distance of pressing means can be obtained characterization battery pole piece and becomes record at this time when great-jump-forward variation occurs
The data of shape amount.When drive system uses automotive drive system, battery pole piece and measuring device are electrically connected before measurement,
And be electrically connected measuring device with automotive drive system, the automatic measurement of deflection and unit for electrical property parameters can be realized, for example, from
When dynamic drive system is electric drive system, measuring device is connect with electric drive system, and electric drive system can be obtained
Shift motion.
In order to fix the position of battery pole piece, avoid the sideslip in pressurized process, as preferred embodiment, it is described plus
Pressure device further include with the pressing means pedestal that is oppositely arranged up and down, the pressing means relative to the pedestal in above-below direction
It can move back and forth.The surface of the pedestal is equipped with the first groove for limiting battery pole piece position, further preferably
The two sides on ground, first groove are equipped with the first limited block.
Pressing means are oppositely arranged up and down with pedestal, and the first groove is arranged in susceptor surface, first puts battery pole piece before pressurization
Enter in the first groove, then is pressurizeed with pressing means to battery pole piece, in this way, battery pole piece is confined in the first groove,
Battery pole piece is avoided arbitrarily to move.The first limited block is arranged in the two sides of first groove, lateral when battery pole piece can be prevented to be pressurized
It is mobile.
When battery pole piece to be tested is laminated structure, the first groove can be set to rectangular recess structure, and when use will
The battery pole piece of sheet is inserted.In addition, first is recessed when battery pole piece to be tested is tested with cylinder-like structure
Slot may be arc-shaped groove.The specific structure of first groove can be according to the specifically used state of battery pole piece to be tested
With test it needs to be determined that.
Above-mentioned pressing means and pedestal can be oppositely arranged other than it can be oppositely arranged up and down with level, as long as being able to achieve
Fixed and squeeze function.In above-mentioned preferred embodiment of the invention, using the structure being oppositely arranged up and down, it is more convenient for grasping
Make.
As a preferred embodiment of the present invention, the surface of the pressing means is equipped with for limiting battery pole piece position
Two grooves, it is further preferred that the two sides of second groove are equipped with the second limited block.
When the first groove is rectangular recess structure, the second groove is also rectangular recess structure；When the first groove is circular arc
When shape structure, the second groove is also circular groove structure.The second limited block is arranged also for preventing in the two sides of second groove
Battery pole piece is displaced sideways in pressurized process.
As a preferred embodiment of the present invention, the pressurizing device further includes the carrying circle for placing battery pole piece
The axial direction of cylinder, the carrying cylinder is vertical with compression aspect, and the carrying cylinder is the carrying cylinder of elastic material.
Above-mentioned carrying cylinder is hollow tubular structure, when needing battery pole piece to be tested to be pressurized with laminated structure,
A settable insertion groove, axial direction of the insertion groove perpendicular to the carrying cylinder among the side wall of the carrying cylinder.When test,
The battery pole piece of laminated structure is put into insertion groove, and carrying cylinder is placed in below pressing means, the axial direction of the carrying cylinder
Direction is parallel with the pressurized plane of pressing means, at this point, pressurized plane of the battery pole piece perpendicular to pressing means.When need battery pole to be tested
When piece is tested with cylinder-like structure, battery pole piece is curled into cylindrical shape when test by the both ends open of above-mentioned carrying cylinder
Structure, and be put into carrying cylinder, then pressurized operation is carried out with pressing means.When battery pole piece compressive deformation, due to
Carrying cylinder is also made for elastic material, and therefore, cylinder can deformation occurs together with battery pole piece for carrying.Using carrying
Cylinder placing battery pole piece can further fix the position of battery pole piece, improve the accuracy of test result.
As a preferred embodiment of the present invention, pedestal is equipped with guide post, and pressing means are set in guide post and are driving
It pumps under the driving of dynamic system along guide post.Guide post, which is arranged, can make the run action of pressing means more steady.
As a preferred embodiment of the present invention, the other end of guide post is connected to upper pedestal, upper pedestal and pressing means it
Between be equipped with gasket, with prevent pressing means move back and forth in upper pedestal direct collision occurs, so that it is impaired to can avoid pressing means.
As a preferred embodiment of the present invention, pressing means are set in guide post by pilot sleeve, to avoid pressurization
The abrasion of part.
As a preferred embodiment of the present invention, the measuring device includes measurement monitoring system, measurement monitoring system
System includes the first signal acquisition process module for measuring voltage, electric current or resistance.It is manually surveyed when test process uses
When examination, the first signal acquisition process module can be voltmeter, ammeter, ohmmeter or multimeter；When test process uses certainly
When dynamic test, the first signal acquisition process module can be integrated test system.
As a preferred embodiment of the present invention, the measurement monitoring system further includes for measuring pressing means moving distance
Second signal acquisition processing module.When test process is using manually testing, second signal acquisition processing module can be with
For graduated scale；When test process is using automatic test, second signal acquisition processing module can be integrated test system.
As a preferred embodiment of the present invention, when using Auto-Test System, the measurement monitoring system and driving
System electrical connection, to guarantee there is signal transmission between measurement monitoring system and drive system.
As a preferred embodiment of the present invention, the measuring device further includes signal output system, the signal output
System is connect with the measurement monitoring system.
As a preferred embodiment of the present invention, the drive system include hydraulic gear, pneumatic actuator or
Any one of electric transmissio mechanism or at least two combination.
When being measured by the way of testing automatically, measuring device is electrically connected with battery pole piece, test process
In, the first signal acquisition process module records the variation of battery pole piece voltage, electric current or resistance, second signal acquisition processing module
Record the shift motion of the pressing means driven by drive system.Measure monitoring system respectively with signal output system and drive system
Electrical connection and respectively the intercommunication signal between signal output system and drive system.It, can be first in measurement monitoring system when test
The changing value of middle setting one specific voltage, electric current or resistance controls the start and stop of drive system as control signal.It is specific to survey
Examination process is as follows: battery pole piece being placed in carrying cylinder, and carrying cylinder is placed between pedestal and pressing means and will be surveyed
Amount device is connected to the two o'clock of battery pole piece, starts drive system at this time, and pressing means push under the action of drive system, starts
When measuring device obtain voltage, electric current or resistance change it is little, as pressing means gradually push, the deformation journey of battery pole piece
Spend it is increasing, when the changing value of voltage, electric current or resistance be more than setting value when, measurement monitoring system control drive system stop
Operation, and record the operation stroke of the pressing means of drive system at this time.In test process, monitoring system is measured by various data
(such as: the numerical value or changing value of voltage, electric current or resistance that the stroke of the pressing means driven by drive system, measurement obtain) transmission
It is shown to signal output system.
Below in conjunction with embodiment 1 and embodiment, 2 couples of present invention are described in further details.
Embodiment 1
As shown in Figure 1-3, the present embodiment is a kind of test equipment of battery pole piece adhesive force, including for battery pole piece
Apply the measuring device 20 of stressed pressurizing device 10 and deflection and unit for electrical property parameters for measuring battery pole piece.
Wherein, pressurizing device includes pedestal 11, carrying cylinder 12, pressing means 13 and upper pedestal 14, pressing means 13 and the seat of honour
Gasket 17 is equipped between body 14.Pedestal 11 and about 14 upper pedestal are oppositely arranged and are connected and consolidated by guide post 15 between the two
It is fixed；Pressing means 13 are sheathed in guide post 15 by pilot sleeve 16, at this point, pressing means 13 are also opposite up and down set with pedestal 11
It sets；Pressing means 13 connect drive system and pump under the driving of drive system along guide post 15.Carry cylinder 12
It is set between pedestal 11 and pressing means 13, and carries the both ends open of cylinder 12, be placed on battery pole piece curling when use
It carries in cylinder 12.
As shown in Fig. 2, the surface of pedestal 11 is equipped with the first groove 111 for limiting battery pole piece position, wherein first
Groove 111 is arc-shaped structure, and the two sides of the first groove 111 are equipped with the first limited block 112.The surface of pressing means 13 is equipped with and is used for
The second groove of battery pole piece position is limited, wherein the second groove is arc-shaped structure, the two sides of the second groove are equipped with the second limit
Position block 131.
In the present embodiment, as shown in figure 3, measuring device 20 include measurement monitoring system 21 and with the measurement monitoring system 21
The signal output system 22 of connection.Measurement monitoring system 21 includes the first signal acquisition for measuring voltage, electric current or resistance
Processing module and second signal acquisition processing module for measuring 13 moving distance of pressing means, and measure monitoring system 21 with
Drive system electrical connection.Drive system in the present embodiment is electric transmission structure.Measurement monitoring system 21 obtains open signal
After transmit a signal to drive system, and the range ability data of drive system are detected, when measurement 21 pairs of drivings of monitoring system are
After system exports signal out of service, drive system is out of service, and final operation data is fed back to measurement monitoring system.Measurement
Monitoring system 21 shows data signal transmission to signal output system 22.In addition, the drive system in pressurizing device
Signal directly can be fed back into signal output system 22 and carry out signal output.
Embodiment 2
The present embodiment is a kind of test equipment of battery pole piece adhesive force, difference from example 1 is that carrying circle
The structure of cylinder 12 is different, other are same as Example 1.
It can will as shown in figure 4, be equipped with an insertion groove 121 among the side wall of the carrying cylinder 12 in the present embodiment, when test
The battery pole piece of sheet is put into 121 in the insertion groove, and sample tap 122 is arranged in the side of insertion groove 121.
The test equipment of the battery pole piece adhesive force provided with embodiment 1 tests 5 groups of battery pole pieces, is denoted as test group respectively
1-5, the battery afflux liquid in every group of battery pole piece are aluminium foil, active material LiCoO2, the difference is that nipping process
In pressure it is different, be respectively as follows: 2Mpa, 5Mpa, 7.5Mpa, 10Mpa, 12.5Mpa.
Firstly, being tested by professional test personnel the sample respectively to test group 1-5, the size of the adhesive force obtained
Sequence is 1 < test group of test group, 2 < test group, 3 < test group, 4 < test group 5.Then the test equipment provided with embodiment 1
When being tested, as a result the moving distance of pressing means when record unit for electrical property parameters changes is listed in table 1.
1 test result of table
| Test item | Test group 1 | Test group 2 | Test group 3 | Test group 4 | Test group 5 |
| Moving distance | 15.5mm | 22.8mm | 29.6mm | 33.5mm | 38.7mm |
Remarks: it is 50mm that above-mentioned battery pole piece to be measured, which is rolled into the diameter after cylinder,.
As shown in Table 1,1 < test group of test group, 2 < test group, 3 < test group, 4 < test group in moving distance
5, it follows that the adhesive force size arrangement of the battery pole piece in test group 1-5 is 1 < test group of test group, 2 < test group, 3 <
4 < test group 5 of test group.Therefore, different battery pole piece adhesive force can accurately be tested using test equipment provided by the invention
Relative size.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of test method of battery pole piece adhesive force, which is characterized in that including making battery pole piece, deformation occurs and tests electricity
The step of deflection and unit for electrical property parameters of pond pole piece.
2. the test method of battery pole piece adhesive force according to claim 1, which is characterized in that the change of the battery pole piece
The straight line compressed dimension of shape amount battery pole piece characterizes；
Preferably, the unit for electrical property parameters includes voltage, electric current or resistance.
3. a kind of test equipment for realizing test method of any of claims 1 or 2, which is characterized in that including for described
Battery pole piece applies the measurement dress of stressed pressurizing device and deflection and unit for electrical property parameters for measuring the battery pole piece
It sets.
4. test equipment according to claim 3, which is characterized in that the pressurizing device includes pressing means and for driving
The drive system that the pressing means are moved back and forth along compression aspect.
5. test equipment according to claim 4, which is characterized in that the pressurizing device further include on the pressing means
Under the pedestal that is oppositely arranged, the pressing means can move back and forth in above-below direction relative to the pedestal；
Preferably, the surface of the pedestal is equipped with the first groove for limiting battery pole piece position；
Preferably, the two sides of first groove are equipped with the first limited block；
Preferably, the surface of the pressing means is equipped with the second groove for limiting battery pole piece position；
Preferably, the two sides of second groove are equipped with the second limited block.
6. test equipment according to claim 4 or 5, which is characterized in that the pressurizing device further includes for placing electricity
The axial direction of the carrying cylinder of pond pole piece, the carrying cylinder is vertical with compression aspect, and the carrying cylinder is holding for elastic material
Carry cylinder.
7. according to the described in any item test equipments of claim 3-5, which is characterized in that the measuring device includes measurement monitoring
System, the measurement monitoring system include the first signal acquisition process module for measuring voltage, electric current or resistance.
8. test equipment according to claim 7, which is characterized in that the measurement monitoring system further includes adding for measuring
The second signal acquisition processing module of casting die moving distance；
Preferably, the measurement monitoring system is electrically connected with the drive system.
9. test equipment according to claim 7, which is characterized in that the measuring device further includes signal output system,
The signal output system is connect with the measurement monitoring system.
10. according to the described in any item test equipments of claim 7-9, which is characterized in that the drive system includes hydraulic biography
Any one of motivation structure, pneumatic actuator or electric transmissio mechanism or at least two combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933051.3A CN109632630B (en) | 2017-10-09 | 2017-10-09 | Method and equipment for testing adhesive force of battery pole piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933051.3A CN109632630B (en) | 2017-10-09 | 2017-10-09 | Method and equipment for testing adhesive force of battery pole piece |
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| CN109632630A true CN109632630A (en) | 2019-04-16 |
| CN109632630B CN109632630B (en) | 2022-04-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109632630B (en) | 2022-04-26 |
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